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Inventor

Masaru Iwasa

Inventor
Hyogo, JP

Overview

5→
Patents
1983–2014
Patent span
Electricity
Primary field (CPC H)

Patents· 5 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

H04Nprimary
H04NPictorial communication, e.g. television43%
C21DModifying the physical structure of ferrous metals14%
G09GArrangements or circuits for control of indicating devices using static means to present variable information14%
G11BInformation storage based on relative movement between record carrier and transducer14%
H03MCoding14%
PatentTitleYear
8,644,687'Recording apparatus'20146,647,202'Video signal reproducing apparatus capable of reproducing bitstreams and video signal reproducing method'20036,335,764'Video output apparatus'20024,539,553'Digital-to-analog converter of the current-adding type'19854,395,021'Vertical continuous annealing furnace and its operating method'1983

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1983Patents assigned to NIPPON STEEL CORP (1)· patent assignee history
1983Based in Muroran, JP· patent location history
1985Based in Kanagawa, JP· patent location history
2002–2003Patents assigned to MATSUSHITA ELECTRIC INDUSTRIAL CO LTD (2)· patent assignee history
2002Based in Moriguchi, JP· patent location history
2003Based in Osaka, JP· patent location history
2014Patents assigned to IWASA MASARU (1)· patent assignee history
2014Patents assigned to KITAGAWA MASAO (1)· patent assignee history
2014Patents assigned to PANASONIC CORP (1)· patent assignee history
2014Based in Hyogo, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD22002–2003
IWASA MASARUself12014
KITAGAWA MASAO12014
NIPPON STEEL CORP11983
PANASONIC CORP12014
Locations
LocationPatentsSpan
Hyogo, JP12014
Osaka, JP12003
Moriguchi, JP12002
Kanagawa, JP11985
Muroran, JP11983